Rothsay
Rothsay, headquartered in Guelph, Canada, collects, processes, and recycles used cooking oil and meat by-products from restaurants, grocery stores, farms, and meat-processing plants across Canada. It operates as Darling International Canada, Inc., a subsidiary of Darling Ingredients Inc. (NYSE: DAR).
- Company typePrivate
- Founded1947
- HeadquartersGuelph, Canada
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
What Rothsay does
Rothsay, founded in 1947 and headquartered in Guelph, Canada, is a private for-profit operator engaged in the collection, processing, and recycling of edible and inedible food and animal by-products across Canada. The company provides used cooking oil collection services, meat by-product disposal, and rendering services to restaurants, fast food chains, hotels, grocery stores, supermarkets, livestock producers, and meat-processing plants, handling daily volumes ranging from 250kg to 250MT. Operating as Darling International Canada, Inc., Rothsay is a wholly-owned subsidiary of Darling Ingredients Inc. (NYSE: DAR), a global circularity platform operating 260+ facilities that process more than 16 million metric tons of raw material annually into 350+ sustainable ingredients for animal nutrition, fertilizers, human food, and renewable fuels.\n\nThe company's core technology centers on rendering — a cooking process that separates raw animal and food materials into fats, proteins, and water — supplemented by proprietary equipment including patented theft-deterrent tank technology, contactless grease removal systems, direct-pump fryer connections, and automated collection containers with dual-level sensors and 25+ years of manufacturing refinement. Service lines span scheduled recurring pickup routes (subscription-style), hardware leasing of Cleanstar GRN, Fat4Fuel, Space Saver, Cleanstar 1500/2500, and outdoor tank models, and downstream ingredient and biofuel feedstock sales into animal feed, pet food, and renewable diesel/aviation fuel markets.\n\nRothsay monetizes through B2B service contracts and recurring collection agreements, hardware leasing, and ingredient transaction fees, with quote-based pricing not publicly disclosed. Go-to-market is direct B2B field sales across enterprise (large restaurant chains, packing plants, supermarkets), mid-market (food service operations), and SMB (smaller restaurants) segments, supported by a customer service line and contact-based onboarding.
Rothsay firmographics
Firmographics- Name
- Rothsay
- Legal name
- Darling International Canada, Inc.
- Website
- https://rothsay.ca
- Company type
- Private
- Founded year
- 1947
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- Rothsay, headquartered in Guelph, Canada, collects, processes, and recycles used cooking oil and meat by-products from restaurants, grocery stores, farms, and meat-processing plants across Canada. It operates as Darling International Canada, Inc., a subsidiary of Darling Ingredients Inc. (NYSE: DAR).
- Ownership category
- akta.pro rank
Rothsay industry classification
Industry- Product category
- Rendering and Recycling Services
- NAICS
- Rendering and Meat Byproduct Processing (311613), Other Animal Food Manufacturing (311119), Animal Food Manufacturing (31111), Fats and Oils Refining and Blending (311225)
- SIC
- Fats & Oils (2070), Wholesale-Farm Product Raw Materials (5150)
- akta.pro primary industry
- Poultry Rendering & Fat Processing (Poultry Meal, Feather Meal, Poultry Fat) (AFANACAK)
- akta.pro secondary industry
- Poultry By-Product Meal Production (Poultry Meal, Feather Meal) (AFANAGAD)
Keywords
Where Rothsay is headquartered
LocationHeadquarters
- HQ city
- Guelph
- HQ country
- Canada
- HQ region
- North America
Markets served
Rothsay business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Operations, Supply Chain, Infrastructure, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- Used Cooking Oil Collection Services: Collection and recycling services for used cooking oil from restaurants and food processing businesses. Service includes delivery of grease containers, scheduled pickups, and contactless removal.
- Used Cooking Oil Systems/Tank Leasing: Provision of various used oil storage tanks including Cleanstar GRN, Fat4Fuel Tank, Space Saver, Cleanstar 1500, Cleanstar 2500, and outdoor models with installation and maintenance services
- Meat By-Products Collection Services: Full-service partnership for containment, collection and recycling of inedible meat by-products from butcher shops, packing plants, supermarkets, and livestock producers
- Animal-Based Ingredients Sales: Sale of processed ingredients to animal feed and pet food manufacturers including chicken meal, blood meal, meat and bone meal, pork meal, and hydrolyzed feather meal
- Biofuel Feedstock Supply: Supply of animal fats as low-carbon feedstock for renewable diesel and aviation fuel production
Distribution channels3 records
Marketing channels3 records
Rothsay product offering
Product offeringCore offering
Rothsay (operating as Darling Ingredients Canada / Darling International Canada, Inc.) collects used cooking oil and inedible meat by-products from restaurants, food processors, grocery stores, and livestock producers across Canada. Collected material is rendered into animal feed ingredients (e.g., meat and bone meal, blood meal, chicken meal, pork meal, hydrolyzed feather meal) and animal fat-based low-carbon biofuel feedstock, with biosecure local processing and full traceability.
Differentiator
Problem solved
Functional benefit
Products and services
- Used Cooking Oil Collection Services
Quantifiable outcome
- Majority of used cooking oil recycled into clean-burning biofuels
- +2 more outcomes
Companies that use Rothsay
Customer profileSegments4 records
Ideal customer profiles4 records
Rothsay technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Rothsay partnerships and signals
Strategic signalScale indicators4 records
Recent moves5 records
Expansion highlights5 records
Rothsay competitors and assessment
Company assessmentDirect peers
- West Coast Reduction Ltd. Canada's largest independent renderer, directly competing with Rothsay across used cooking oil collection, animal by-product rendering, and tallow/meal production in Western and Central Canada. Most directly comparable peer in the Canadian market.
- Darling Ingredients Inc. The publicly-traded parent company (NYSE: DAR) of which Rothsay is the Canadian subsidiary; operates the largest global rendering footprint (260+ facilities, 16M metric tons annually) across the same rendering, fats, and protein meal value chain.
- Baker Commodities Inc. US-based renderer collecting used cooking oil and processing animal by-products into tallow, yellow grease, and protein meals; closely comparable in service model (route-based UCO collection + rendering) though operating in the US.
- Valley Proteins Inc. Regional US renderer producing tallow, meat and bone meal, and blood meal from animal by-products and used cooking oil; operates analogous collection-and-rendering infrastructure to Rothsay in the mid-Atlantic and Southeast US.
Broad incumbents
- Cargill Inc. Global food and agribusiness major with North American animal nutrition and rendering operations; overlaps with Rothsay's ingredient (meal/fat) outputs as part of a much broader diversified portfolio including animal feed, food ingredients, and bioindustrial products.
- Tyson Foods Inc. Vertically integrated protein producer operating inedible rendering and renewable energy from animal by-products; competes for feed ingredient and rendered-fat end markets as part of a wider poultry and prepared foods business.
- SARIA Group: European rendering, fats, and protein ingredients group also active in biofuel feedstock and organic fertilizers; comparable end-product mix (proteins, fats, biofuels) though primarily operating in Europe.
- JBS S.A. Global protein giant with rendering and renewable energy/biodiesel operations that compete with Rothsay on tallow and protein meal supply, though as part of a much broader meat and prepared foods portfolio.
Regional players
- Maple Leaf Foods Inc. Canadian protein producer generating inedible animal by-products and a major potential feedstock source/supplier for Rothsay's rendering plants; closest Canadian food counterpart and overlapping in bioeconomy positioning.
Emerging players
- Ÿnsect NL: Insect protein producer generating meal and oil from organic side-streams; an emerging alternative-protein competitor to traditional renderers in animal feed and fertilizer markets, with growing Canadian/North American activity.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
Rothsay social profiles
Digital presenceRothsay financial estimates
Financial estimateRevenue estimate
Valuation estimate
Rothsay leadership team
Management profileNumber of profiles
Rothsay funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Rothsay M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Rothsay
What does Rothsay do?
Rothsay (operating as Darling Ingredients Canada / Darling International Canada, Inc.) collects used cooking oil and inedible meat by-products from restaurants, food processors, grocery stores, and livestock producers across Canada. Collected material is rendered into animal feed ingredients (e.g., meat and bone meal, blood meal, chicken meal, pork meal, hydrolyzed feather meal) and animal fat-based low-carbon biofuel feedstock, with biosecure local processing and full traceability.
Is Rothsay a public or private company?
Rothsay is a private company. It is classified as corporate owned and is currently operating.
When was Rothsay founded?
Rothsay was founded in 1947. It employs 501 to 1,000 people.
Where is Rothsay based?
Rothsay is headquartered in Guelph, Canada, in the North America region.
How does Rothsay make money?
Five revenue lines are on record. Used Cooking Oil Collection Services are the primary driver. The others are used Cooking Oil Systems/Tank Leasing, meat By-Products Collection Services, animal-Based Ingredients Sales and biofuel Feedstock Supply.
Who are Rothsay's main competitors?
Direct peers on record are West Coast Reduction Ltd., Darling Ingredients Inc., Baker Commodities Inc. and Valley Proteins Inc.. Broad incumbents are Cargill Inc., Tyson Foods Inc., SARIA Group and JBS S.A.. Maple Leaf Foods Inc. is listed as a regional player. Ÿnsect NL is listed as an emerging player.
Does Rothsay have an API?
No public API is recorded for Rothsay.
What industry is Rothsay in?
Rothsay's product category is Rendering and Recycling Services. Its primary akta.pro industry code is AFANACAK, Poultry Rendering & Fat Processing (Poultry Meal, Feather Meal, Poultry Fat), with a secondary code of AFANAGAD, Poultry By-Product Meal Production (Poultry Meal, Feather Meal). Its NAICS code is 311613 and its SIC code is 2070.